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lianna [129]
3 years ago
8

What is the equation of the line that passes through the points (-1, 3) and (1, 11)

Mathematics
1 answer:
lina2011 [118]3 years ago
3 0

Answer: To find the slope of this line, you would use the fomula

y2 - y1/ x2 - x1

11 - 3 / 1 - (-1)=

8/2

4

The slope of your line would be 4

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It should be a 80 degrees.
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Find the surface area of each figure?Please help
kolbaska11 [484]
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Surface area of the cube
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6(2.5 x 2.5) = 37.5m²

<em>(* Each area is 2.5 x 2.5, and there are 6 sides to the cube)</em>

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Surface area of the rectangle prism
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2(11 x 7) + 2(9 x 7) + 2(9 x 11) = 478m²

<em>(* The opposite side of the rectangle area is the same, therefore x2)
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Overlapping area
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2.5 x 2.5 = 6.25m²

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Surface area of the composite figure
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37.5 + 478 - 2(6.25) = 503m²

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Answer: 503m²
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4 0
3 years ago
The circumference of a circular design is 2020 inches.
zhuklara [117]

Answer:

Diameter of the circle is twice it's radius D=2r.

Circumference of the circle is 2πr.

According to the above problem,

<u>2π(radius)</u>=20 inches

2(radius)=20/π=20/3.14

Diameter=<u>6.37 inches</u>

<h3><u>6.37 inches</u> is the right answer.</h3>
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What does three more mean in a verbal expression
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3 more means u add 3
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3 years ago
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Which of the following is not a way to represent the solution of the inequality 2(x − 1) greater than or equal to −12?
lesya [120]

Let us solve the inequality first


2(x-1)\ge -12


Dividing through by 2 gives


(x-1)\ge -6


Grouping like terms gives

x\ge -6+1

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This corresponds to option A in words

If we rewrite as

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it will correspond to option C in words

Representing on diagram corresponds to option D (See attachment)


All are correct ways to represent the solution except B.

The correct answer is option B





5 0
3 years ago
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